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ntfs_fs.h
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linux-6.19.14/fs/ntfs3/ntfs_fs.h
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * 4 * Copyright (C) 2019-2021 Paragon Software GmbH, All rights reserved. 5 * 6 */ 7 8// clang-format off 9#ifndef _LINUX_NTFS3_NTFS_FS_H 10#define _LINUX_NTFS3_NTFS_FS_H 11 12#include <linux/blkdev.h> 13#include <linux/buffer_head.h> 14#include <linux/fs.h> 15#include <linux/highmem.h> 16#include <linux/kernel.h> 17#include <linux/mm.h> 18#include <linux/mutex.h> 19#include <linux/page-flags.h> 20#include <linux/pagemap.h> 21#include <linux/rbtree.h> 22#include <linux/rwsem.h> 23#include <linux/slab.h> 24#include <linux/string.h> 25#include <linux/time64.h> 26#include <linux/types.h> 27#include <linux/uidgid.h> 28#include <asm/div64.h> 29#include <asm/page.h> 30 31#include "debug.h" 32#include "ntfs.h" 33 34struct dentry; 35struct fiemap_extent_info; 36struct user_namespace; 37struct page; 38struct writeback_control; 39enum utf16_endian; 40 41 42#define MINUS_ONE_T ((size_t)(-1)) 43/* Biggest MFT / smallest cluster */ 44#define MAXIMUM_BYTES_PER_MFT 4096 45#define MAXIMUM_SHIFT_BYTES_PER_MFT 12 46#define NTFS_BLOCKS_PER_MFT_RECORD (MAXIMUM_BYTES_PER_MFT / 512) 47 48#define MAXIMUM_BYTES_PER_INDEX 4096 49#define MAXIMUM_SHIFT_BYTES_PER_INDEX 12 50#define NTFS_BLOCKS_PER_INODE (MAXIMUM_BYTES_PER_INDEX / 512) 51 52/* NTFS specific error code when fixup failed. */ 53#define E_NTFS_FIXUP 555 54/* NTFS specific error code about resident->nonresident. */ 55#define E_NTFS_NONRESIDENT 556 56/* NTFS specific error code about punch hole. */ 57#define E_NTFS_NOTALIGNED 557 58/* NTFS specific error code when on-disk struct is corrupted. */ 59#define E_NTFS_CORRUPT 558 60 61 62/* sbi->flags */ 63#define NTFS_FLAGS_NODISCARD 0x00000001 64/* ntfs in shutdown state. */ 65#define NTFS_FLAGS_SHUTDOWN_BIT 0x00000002 /* == 4*/ 66/* Set when LogFile is replaying. */ 67#define NTFS_FLAGS_LOG_REPLAYING 0x00000008 68/* Set when we changed first MFT's which copy must be updated in $MftMirr. */ 69#define NTFS_FLAGS_MFTMIRR 0x00001000 70#define NTFS_FLAGS_NEED_REPLAY 0x04000000 71 72 73/* ni->ni_flags */ 74/* 75 * Data attribute is external compressed (LZX/Xpress) 76 * 1 - WOF_COMPRESSION_XPRESS4K 77 * 2 - WOF_COMPRESSION_XPRESS8K 78 * 3 - WOF_COMPRESSION_XPRESS16K 79 * 4 - WOF_COMPRESSION_LZX32K 80 */ 81#define NI_FLAG_COMPRESSED_MASK 0x0000000f 82/* Data attribute is deduplicated. */ 83#define NI_FLAG_DEDUPLICATED 0x00000010 84#define NI_FLAG_EA 0x00000020 85#define NI_FLAG_DIR 0x00000040 86#define NI_FLAG_RESIDENT 0x00000080 87#define NI_FLAG_UPDATE_PARENT 0x00000100 88// clang-format on 89 90struct ntfs_mount_options { 91 char *nls_name; 92 struct nls_table *nls; 93 94 kuid_t fs_uid; 95 kgid_t fs_gid; 96 u16 fs_fmask_inv; 97 u16 fs_dmask_inv; 98 99 unsigned fmask : 1; /* fmask was set. */ 100 unsigned dmask : 1; /*dmask was set. */ 101 unsigned sys_immutable : 1; /* Immutable system files. */ 102 unsigned discard : 1; /* Issue discard requests on deletions. */ 103 unsigned sparse : 1; /* Create sparse files. */ 104 unsigned showmeta : 1; /* Show meta files. */ 105 unsigned nohidden : 1; /* Do not show hidden files. */ 106 unsigned hide_dot_files : 1; /* Set hidden flag on dot files. */ 107 unsigned windows_names : 1; /* Disallow names forbidden by Windows. */ 108 unsigned force : 1; /* RW mount dirty volume. */ 109 unsigned prealloc : 1; /* Preallocate space when file is growing. */ 110 unsigned nocase : 1; /* case insensitive. */ 111}; 112 113/* Special value to unpack and deallocate. */ 114#define RUN_DEALLOCATE ((struct runs_tree *)(size_t)1) 115 116/* TODO: Use rb tree instead of array. */ 117struct runs_tree { 118 struct ntfs_run *runs; 119 size_t count; /* Currently used size a ntfs_run storage. */ 120 size_t allocated; /* Currently allocated ntfs_run storage size. */ 121}; 122 123struct ntfs_buffers { 124 /* Biggest MFT / smallest cluster = 4096 / 512 = 8 */ 125 /* Biggest index / smallest cluster = 4096 / 512 = 8 */ 126 struct buffer_head *bh[PAGE_SIZE >> SECTOR_SHIFT]; 127 u32 bytes; 128 u32 nbufs; 129 u32 off; 130}; 131 132enum ALLOCATE_OPT { 133 ALLOCATE_DEF = 0, // Allocate all clusters. 134 ALLOCATE_MFT = 1, // Allocate for MFT. 135 ALLOCATE_ZERO = 2, // Zeroout new allocated clusters 136}; 137 138enum bitmap_mutex_classes { 139 BITMAP_MUTEX_CLUSTERS = 0, 140 BITMAP_MUTEX_MFT = 1, 141}; 142 143struct wnd_bitmap { 144 struct super_block *sb; 145 struct rw_semaphore rw_lock; 146 147 struct runs_tree run; 148 size_t nbits; 149 150 size_t total_zeroes; // Total number of free bits. 151 u16 *free_bits; // Free bits in each window. 152 size_t nwnd; 153 u32 bits_last; // Bits in last window. 154 155 struct rb_root start_tree; // Extents, sorted by 'start'. 156 struct rb_root count_tree; // Extents, sorted by 'count + start'. 157 size_t count; // Extents count. 158 159 /* 160 * -1 Tree is activated but not updated (too many fragments). 161 * 0 - Tree is not activated. 162 * 1 - Tree is activated and updated. 163 */ 164 int uptodated; 165 size_t extent_min; // Minimal extent used while building. 166 size_t extent_max; // Upper estimate of biggest free block. 167 168 /* Zone [bit, end) */ 169 size_t zone_bit; 170 size_t zone_end; 171 172 bool inited; 173}; 174 175typedef int (*NTFS_CMP_FUNC)(const void *key1, size_t len1, const void *key2, 176 size_t len2, const void *param); 177 178enum index_mutex_classed { 179 INDEX_MUTEX_I30 = 0, 180 INDEX_MUTEX_SII = 1, 181 INDEX_MUTEX_SDH = 2, 182 INDEX_MUTEX_SO = 3, 183 INDEX_MUTEX_SQ = 4, 184 INDEX_MUTEX_SR = 5, 185 INDEX_MUTEX_TOTAL 186}; 187 188/* ntfs_index - Allocation unit inside directory. */ 189struct ntfs_index { 190 struct runs_tree bitmap_run; 191 struct runs_tree alloc_run; 192 /* read/write access to 'bitmap_run'/'alloc_run' while ntfs_readdir */ 193 struct rw_semaphore run_lock; 194 195 /*TODO: Remove 'cmp'. */ 196 NTFS_CMP_FUNC cmp; 197 198 u8 index_bits; // log2(root->index_block_size) 199 u8 idx2vbn_bits; // log2(root->index_block_clst) 200 u8 vbn2vbo_bits; // index_block_size < cluster? 9 : cluster_bits 201 u8 type; // index_mutex_classed 202}; 203 204/* Minimum MFT zone. */ 205#define NTFS_MIN_MFT_ZONE 100 206/* Step to increase the MFT. */ 207#define NTFS_MFT_INCREASE_STEP 1024 208 209/* Ntfs file system in-core superblock data. */ 210struct ntfs_sb_info { 211 struct super_block *sb; 212 213 u32 discard_granularity; 214 u64 discard_granularity_mask_inv; // ~(discard_granularity_mask_inv-1) 215 u32 bdev_blocksize_mask; // bdev_logical_block_size(bdev) - 1; 216 217 u32 cluster_size; // bytes per cluster 218 u32 cluster_mask; // == cluster_size - 1 219 u64 cluster_mask_inv; // ~(cluster_size - 1) 220 u32 block_mask; // sb->s_blocksize - 1 221 u32 blocks_per_cluster; // cluster_size / sb->s_blocksize 222 223 u32 record_size; 224 u32 index_size; 225 226 u8 cluster_bits; 227 u8 record_bits; 228 229 u64 maxbytes; // Maximum size for normal files. 230 u64 maxbytes_sparse; // Maximum size for sparse file. 231 232 unsigned long flags; // See NTFS_FLAGS_ 233 234 CLST zone_max; // Maximum MFT zone length in clusters 235 CLST bad_clusters; // The count of marked bad clusters. 236 237 u16 max_bytes_per_attr; // Maximum attribute size in record. 238 u16 attr_size_tr; // Attribute size threshold (320 bytes). 239 240 /* Records in $Extend. */ 241 CLST objid_no; 242 CLST quota_no; 243 CLST reparse_no; 244 CLST usn_jrnl_no; 245 246 struct ATTR_DEF_ENTRY *def_table; // Attribute definition table. 247 u32 def_entries; 248 u32 ea_max_size; 249 250 struct MFT_REC *new_rec; 251 252 u16 *upcase; 253 254 struct { 255 u64 lbo, lbo2; 256 struct ntfs_inode *ni; 257 struct wnd_bitmap bitmap; // $MFT::Bitmap 258 /* 259 * MFT records [11-24) used to expand MFT itself. 260 * They always marked as used in $MFT::Bitmap 261 * 'reserved_bitmap' contains real bitmap of these records. 262 */ 263 ulong reserved_bitmap; // Bitmap of used records [11 - 24) 264 size_t next_free; // The next record to allocate from 265 size_t used; // MFT valid size in records. 266 u32 recs_mirr; // Number of records in MFTMirr 267 u8 next_reserved; 268 u8 reserved_bitmap_inited; 269 } mft; 270 271 struct { 272 struct wnd_bitmap bitmap; // $Bitmap::Data 273 CLST next_free_lcn; 274 } used; 275 276 struct { 277 u64 size; // In bytes. 278 u64 blocks; // In blocks. 279 u64 ser_num; 280 struct ntfs_inode *ni; 281 __le16 flags; // Cached current VOLUME_INFO::flags, VOLUME_FLAG_DIRTY. 282 u8 major_ver; 283 u8 minor_ver; 284 char label[FSLABEL_MAX]; 285 bool real_dirty; // Real fs state. 286 } volume; 287 288 struct { 289 struct ntfs_index index_sii; 290 struct ntfs_index index_sdh; 291 struct ntfs_inode *ni; 292 u32 next_id; 293 u64 next_off; 294 __le32 def_security_id; 295 } security; 296 297 struct { 298 struct ntfs_index index_r; 299 struct ntfs_inode *ni; 300 u64 max_size; // 16K 301 } reparse; 302 303 struct { 304 struct ntfs_index index_o; 305 struct ntfs_inode *ni; 306 } objid; 307 308 struct { 309 struct mutex mtx_lznt; 310 struct lznt *lznt; 311#ifdef CONFIG_NTFS3_LZX_XPRESS 312 struct mutex mtx_xpress; 313 struct xpress_decompressor *xpress; 314 struct mutex mtx_lzx; 315 struct lzx_decompressor *lzx; 316#endif 317 } compress; 318 319 struct ntfs_mount_options *options; 320 struct ratelimit_state msg_ratelimit; 321 struct proc_dir_entry *procdir; 322}; 323 324/* One MFT record(usually 1024 bytes), consists of attributes. */ 325struct mft_inode { 326 struct rb_node node; 327 struct ntfs_sb_info *sbi; 328 329 struct MFT_REC *mrec; 330 struct ntfs_buffers nb; 331 332 CLST rno; 333 bool dirty; 334}; 335 336/* Nested class for ntfs_inode::ni_lock. */ 337enum ntfs_inode_mutex_lock_class { 338 NTFS_INODE_MUTEX_DIRTY = 1, 339 NTFS_INODE_MUTEX_SECURITY, 340 NTFS_INODE_MUTEX_OBJID, 341 NTFS_INODE_MUTEX_REPARSE, 342 NTFS_INODE_MUTEX_NORMAL, 343 NTFS_INODE_MUTEX_PARENT, 344 NTFS_INODE_MUTEX_PARENT2, 345}; 346 347/* 348 * struct ntfs_inode 349 * 350 * Ntfs inode - extends linux inode. consists of one or more MFT inodes. 351 */ 352struct ntfs_inode { 353 struct mft_inode mi; // base record 354 355 /* 356 * Valid size: [0 - i_valid) - these range in file contains valid data. 357 * Range [i_valid - inode->i_size) - contains 0. 358 * Usually i_valid <= inode->i_size. 359 */ 360 u64 i_valid; 361 struct timespec64 i_crtime; 362 363 struct mutex ni_lock; 364 365 /* File attributes from std. */ 366 enum FILE_ATTRIBUTE std_fa; 367 __le32 std_security_id; 368 369 /* 370 * Tree of mft_inode. 371 * Not empty when primary MFT record (usually 1024 bytes) can't save all attributes 372 * e.g. file becomes too fragmented or contains a lot of names. 373 */ 374 struct rb_root mi_tree; 375 376 /* 377 * This member is used in ntfs_readdir to ensure that all subrecords are loaded 378 */ 379 u8 mi_loaded; 380 381 /* 382 * Use this field to avoid any write(s). 383 * If inode is bad during initialization - use make_bad_inode 384 * If inode is bad during operations - use this field 385 */ 386 u8 ni_bad; 387 388 union { 389 struct ntfs_index dir; 390 struct { 391 struct rw_semaphore run_lock; 392 struct runs_tree run; 393#ifdef CONFIG_NTFS3_LZX_XPRESS 394 struct folio *offs_folio; 395#endif 396 } file; 397 }; 398 399 struct { 400 struct runs_tree run; 401 struct ATTR_LIST_ENTRY *le; // 1K aligned memory. 402 size_t size; 403 bool dirty; 404 } attr_list; 405 406 size_t ni_flags; // NI_FLAG_XXX 407 408 struct inode vfs_inode; 409}; 410 411struct indx_node { 412 struct ntfs_buffers nb; 413 struct INDEX_BUFFER *index; 414}; 415 416struct ntfs_fnd { 417 int level; 418 struct indx_node *nodes[20]; 419 struct NTFS_DE *de[20]; 420 struct NTFS_DE *root_de; 421}; 422 423enum REPARSE_SIGN { 424 REPARSE_NONE = 0, 425 REPARSE_COMPRESSED = 1, 426 REPARSE_DEDUPLICATED = 2, 427 REPARSE_LINK = 3 428}; 429 430/* Functions from attrib.c */ 431int attr_allocate_clusters(struct ntfs_sb_info *sbi, struct runs_tree *run, 432 CLST vcn, CLST lcn, CLST len, CLST *pre_alloc, 433 enum ALLOCATE_OPT opt, CLST *alen, const size_t fr, 434 CLST *new_lcn, CLST *new_len); 435int attr_make_nonresident(struct ntfs_inode *ni, struct ATTRIB *attr, 436 struct ATTR_LIST_ENTRY *le, struct mft_inode *mi, 437 u64 new_size, struct runs_tree *run, 438 struct ATTRIB **ins_attr, struct page *page); 439int attr_set_size(struct ntfs_inode *ni, enum ATTR_TYPE type, 440 const __le16 *name, u8 name_len, struct runs_tree *run, 441 u64 new_size, const u64 *new_valid, bool keep_prealloc, 442 struct ATTRIB **ret); 443int attr_data_get_block(struct ntfs_inode *ni, CLST vcn, CLST clen, CLST *lcn, 444 CLST *len, bool *new, bool zero); 445int attr_data_read_resident(struct ntfs_inode *ni, struct folio *folio); 446int attr_data_write_resident(struct ntfs_inode *ni, struct folio *folio); 447int attr_load_runs_vcn(struct ntfs_inode *ni, enum ATTR_TYPE type, 448 const __le16 *name, u8 name_len, struct runs_tree *run, 449 CLST vcn); 450int attr_load_runs_range(struct ntfs_inode *ni, enum ATTR_TYPE type, 451 const __le16 *name, u8 name_len, struct runs_tree *run, 452 u64 from, u64 to); 453int attr_wof_frame_info(struct ntfs_inode *ni, struct ATTRIB *attr, 454 struct runs_tree *run, u64 frame, u64 frames, 455 u8 frame_bits, u32 *ondisk_size, u64 *vbo_data); 456int attr_is_frame_compressed(struct ntfs_inode *ni, struct ATTRIB *attr, 457 CLST frame, CLST *clst_data, 458 struct runs_tree *run); 459int attr_allocate_frame(struct ntfs_inode *ni, CLST frame, size_t compr_size, 460 u64 new_valid); 461int attr_collapse_range(struct ntfs_inode *ni, u64 vbo, u64 bytes); 462int attr_insert_range(struct ntfs_inode *ni, u64 vbo, u64 bytes); 463int attr_punch_hole(struct ntfs_inode *ni, u64 vbo, u64 bytes, u32 *frame_size); 464int attr_force_nonresident(struct ntfs_inode *ni); 465 466/* Functions from attrlist.c */ 467void al_destroy(struct ntfs_inode *ni); 468bool al_verify(struct ntfs_inode *ni); 469int ntfs_load_attr_list(struct ntfs_inode *ni, struct ATTRIB *attr); 470struct ATTR_LIST_ENTRY *al_enumerate(struct ntfs_inode *ni, 471 struct ATTR_LIST_ENTRY *le); 472struct ATTR_LIST_ENTRY *al_find_le(struct ntfs_inode *ni, 473 struct ATTR_LIST_ENTRY *le, 474 const struct ATTRIB *attr); 475struct ATTR_LIST_ENTRY *al_find_ex(struct ntfs_inode *ni, 476 struct ATTR_LIST_ENTRY *le, 477 enum ATTR_TYPE type, const __le16 *name, 478 u8 name_len, const CLST *vcn); 479int al_add_le(struct ntfs_inode *ni, enum ATTR_TYPE type, const __le16 *name, 480 u8 name_len, CLST svcn, __le16 id, const struct MFT_REF *ref, 481 struct ATTR_LIST_ENTRY **new_le); 482bool al_remove_le(struct ntfs_inode *ni, struct ATTR_LIST_ENTRY *le); 483int al_update(struct ntfs_inode *ni, int sync); 484static inline size_t al_aligned(size_t size) 485{ 486 return size_add(size, 1023) & ~(size_t)1023; 487} 488 489/* Globals from bitfunc.c */ 490bool are_bits_clear(const void *map, size_t bit, size_t nbits); 491bool are_bits_set(const void *map, size_t bit, size_t nbits); 492size_t get_set_bits_ex(const void *map, size_t bit, size_t nbits); 493 494/* Globals from dir.c */ 495int ntfs_utf16_to_nls(struct ntfs_sb_info *sbi, const __le16 *name, u32 len, 496 u8 *buf, int buf_len); 497int ntfs_nls_to_utf16(struct ntfs_sb_info *sbi, const u8 *name, u32 name_len, 498 struct cpu_str *uni, u32 max_ulen, 499 enum utf16_endian endian); 500struct inode *dir_search_u(struct inode *dir, const struct cpu_str *uni, 501 struct ntfs_fnd *fnd); 502bool dir_is_empty(struct inode *dir); 503extern const struct file_operations ntfs_dir_operations; 504extern const struct file_operations ntfs_legacy_dir_operations; 505 506/* Globals from file.c */ 507int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path, 508 struct kstat *stat, u32 request_mask, u32 flags); 509int ntfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 510 struct iattr *attr); 511int ntfs_file_open(struct inode *inode, struct file *file); 512int ntfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 513 __u64 start, __u64 len); 514long ntfs_ioctl(struct file *filp, u32 cmd, unsigned long arg); 515long ntfs_compat_ioctl(struct file *filp, u32 cmd, unsigned long arg); 516extern const struct inode_operations ntfs_special_inode_operations; 517extern const struct inode_operations ntfs_file_inode_operations; 518extern const struct file_operations ntfs_file_operations; 519extern const struct file_operations ntfs_legacy_file_operations; 520 521/* Globals from frecord.c */ 522void ni_remove_mi(struct ntfs_inode *ni, struct mft_inode *mi); 523struct ATTR_STD_INFO *ni_std(struct ntfs_inode *ni); 524struct ATTR_STD_INFO5 *ni_std5(struct ntfs_inode *ni); 525void ni_clear(struct ntfs_inode *ni); 526int ni_load_mi_ex(struct ntfs_inode *ni, CLST rno, struct mft_inode **mi); 527int ni_load_mi(struct ntfs_inode *ni, const struct ATTR_LIST_ENTRY *le, 528 struct mft_inode **mi); 529struct ATTRIB *ni_find_attr(struct ntfs_inode *ni, struct ATTRIB *attr, 530 struct ATTR_LIST_ENTRY **entry_o, 531 enum ATTR_TYPE type, const __le16 *name, 532 u8 name_len, const CLST *vcn, 533 struct mft_inode **mi); 534struct ATTRIB *ni_enum_attr_ex(struct ntfs_inode *ni, struct ATTRIB *attr, 535 struct ATTR_LIST_ENTRY **le, 536 struct mft_inode **mi); 537int ni_load_all_mi(struct ntfs_inode *ni); 538bool ni_add_subrecord(struct ntfs_inode *ni, CLST rno, struct mft_inode **mi); 539int ni_remove_attr(struct ntfs_inode *ni, enum ATTR_TYPE type, 540 const __le16 *name, u8 name_len, bool base_only, 541 const __le16 *id); 542int ni_create_attr_list(struct ntfs_inode *ni); 543int ni_expand_list(struct ntfs_inode *ni); 544int ni_insert_nonresident(struct ntfs_inode *ni, enum ATTR_TYPE type, 545 const __le16 *name, u8 name_len, 546 const struct runs_tree *run, CLST svcn, CLST len, 547 __le16 flags, struct ATTRIB **new_attr, 548 struct mft_inode **mi, struct ATTR_LIST_ENTRY **le); 549int ni_insert_resident(struct ntfs_inode *ni, u32 data_size, 550 enum ATTR_TYPE type, const __le16 *name, u8 name_len, 551 struct ATTRIB **new_attr, struct mft_inode **mi, 552 struct ATTR_LIST_ENTRY **le); 553void ni_remove_attr_le(struct ntfs_inode *ni, struct ATTRIB *attr, 554 struct mft_inode *mi, struct ATTR_LIST_ENTRY *le); 555int ni_delete_all(struct ntfs_inode *ni); 556struct ATTR_FILE_NAME *ni_fname_name(struct ntfs_inode *ni, 557 const struct le_str *uni, 558 const struct MFT_REF *home, 559 struct mft_inode **mi, 560 struct ATTR_LIST_ENTRY **entry); 561struct ATTR_FILE_NAME *ni_fname_type(struct ntfs_inode *ni, u8 name_type, 562 struct mft_inode **mi, 563 struct ATTR_LIST_ENTRY **entry); 564int ni_new_attr_flags(struct ntfs_inode *ni, enum FILE_ATTRIBUTE new_fa); 565enum REPARSE_SIGN ni_parse_reparse(struct ntfs_inode *ni, struct ATTRIB *attr, 566 struct REPARSE_DATA_BUFFER *buffer); 567int ni_write_inode(struct inode *inode, int sync, const char *hint); 568#define _ni_write_inode(i, w) ni_write_inode(i, w, __func__) 569int ni_fiemap(struct ntfs_inode *ni, struct fiemap_extent_info *fieinfo, 570 __u64 vbo, __u64 len); 571int ni_read_folio_cmpr(struct ntfs_inode *ni, struct folio *folio); 572int ni_decompress_file(struct ntfs_inode *ni); 573int ni_read_frame(struct ntfs_inode *ni, u64 frame_vbo, struct page **pages, 574 u32 pages_per_frame, int copy); 575int ni_write_frame(struct ntfs_inode *ni, struct page **pages, 576 u32 pages_per_frame); 577int ni_remove_name(struct ntfs_inode *dir_ni, struct ntfs_inode *ni, 578 struct NTFS_DE *de, struct NTFS_DE **de2, int *undo_step); 579 580bool ni_remove_name_undo(struct ntfs_inode *dir_ni, struct ntfs_inode *ni, 581 struct NTFS_DE *de, struct NTFS_DE *de2, 582 int undo_step); 583 584int ni_add_name(struct ntfs_inode *dir_ni, struct ntfs_inode *ni, 585 struct NTFS_DE *de); 586 587int ni_rename(struct ntfs_inode *dir_ni, struct ntfs_inode *new_dir_ni, 588 struct ntfs_inode *ni, struct NTFS_DE *de, 589 struct NTFS_DE *new_de); 590 591bool ni_is_dirty(struct inode *inode); 592 593/* Globals from fslog.c */ 594bool check_index_header(const struct INDEX_HDR *hdr, size_t bytes); 595int log_replay(struct ntfs_inode *ni, bool *initialized); 596 597/* Globals from fsntfs.c */ 598struct buffer_head *ntfs_bread(struct super_block *sb, sector_t block); 599bool ntfs_fix_pre_write(struct NTFS_RECORD_HEADER *rhdr, size_t bytes); 600int ntfs_fix_post_read(struct NTFS_RECORD_HEADER *rhdr, size_t bytes, 601 bool simple); 602int ntfs_extend_init(struct ntfs_sb_info *sbi); 603int ntfs_loadlog_and_replay(struct ntfs_inode *ni, struct ntfs_sb_info *sbi); 604int ntfs_look_for_free_space(struct ntfs_sb_info *sbi, CLST lcn, CLST len, 605 CLST *new_lcn, CLST *new_len, 606 enum ALLOCATE_OPT opt); 607bool ntfs_check_for_free_space(struct ntfs_sb_info *sbi, CLST clen, CLST mlen); 608int ntfs_look_free_mft(struct ntfs_sb_info *sbi, CLST *rno, bool mft, 609 struct ntfs_inode *ni, struct mft_inode **mi); 610void ntfs_mark_rec_free(struct ntfs_sb_info *sbi, CLST rno, bool is_mft); 611int ntfs_clear_mft_tail(struct ntfs_sb_info *sbi, size_t from, size_t to); 612int ntfs_refresh_zone(struct ntfs_sb_info *sbi); 613void ntfs_update_mftmirr(struct ntfs_sb_info *sbi, int wait); 614void ntfs_bad_inode(struct inode *inode, const char *hint); 615#define _ntfs_bad_inode(i) ntfs_bad_inode(i, __func__) 616enum NTFS_DIRTY_FLAGS { 617 NTFS_DIRTY_CLEAR = 0, 618 NTFS_DIRTY_DIRTY = 1, 619 NTFS_DIRTY_ERROR = 2, 620}; 621int ntfs_set_state(struct ntfs_sb_info *sbi, enum NTFS_DIRTY_FLAGS dirty); 622int ntfs_sb_write(struct super_block *sb, u64 lbo, size_t bytes, 623 const void *buffer, int wait); 624int ntfs_sb_write_run(struct ntfs_sb_info *sbi, const struct runs_tree *run, 625 u64 vbo, const void *buf, size_t bytes, int sync); 626struct buffer_head *ntfs_bread_run(struct ntfs_sb_info *sbi, 627 const struct runs_tree *run, u64 vbo); 628int ntfs_read_run_nb(struct ntfs_sb_info *sbi, const struct runs_tree *run, 629 u64 vbo, void *buf, u32 bytes, struct ntfs_buffers *nb); 630int ntfs_read_bh(struct ntfs_sb_info *sbi, const struct runs_tree *run, u64 vbo, 631 struct NTFS_RECORD_HEADER *rhdr, u32 bytes, 632 struct ntfs_buffers *nb); 633int ntfs_get_bh(struct ntfs_sb_info *sbi, const struct runs_tree *run, u64 vbo, 634 u32 bytes, struct ntfs_buffers *nb); 635int ntfs_write_bh(struct ntfs_sb_info *sbi, struct NTFS_RECORD_HEADER *rhdr, 636 struct ntfs_buffers *nb, int sync); 637int ntfs_read_write_run(struct ntfs_sb_info *sbi, const struct runs_tree *run, 638 void *buf, u64 vbo, size_t bytes, int wr); 639static inline int ntfs_read_run(struct ntfs_sb_info *sbi, 640 const struct runs_tree *run, void *buf, u64 vbo, 641 size_t bytes) 642{ 643 return ntfs_read_write_run(sbi, run, buf, vbo, bytes, 0); 644} 645static inline int ntfs_write_run(struct ntfs_sb_info *sbi, 646 const struct runs_tree *run, void *buf, 647 u64 vbo, size_t bytes) 648{ 649 return ntfs_read_write_run(sbi, run, buf, vbo, bytes, 1); 650} 651 652int ntfs_bio_fill_1(struct ntfs_sb_info *sbi, const struct runs_tree *run); 653int ntfs_vbo_to_lbo(struct ntfs_sb_info *sbi, const struct runs_tree *run, 654 u64 vbo, u64 *lbo, u64 *bytes); 655struct ntfs_inode *ntfs_new_inode(struct ntfs_sb_info *sbi, CLST nRec, 656 enum RECORD_FLAG flag); 657extern const u8 s_default_security[0x50]; 658bool is_sd_valid(const struct SECURITY_DESCRIPTOR_RELATIVE *sd, u32 len); 659int ntfs_security_init(struct ntfs_sb_info *sbi); 660int ntfs_get_security_by_id(struct ntfs_sb_info *sbi, __le32 security_id, 661 struct SECURITY_DESCRIPTOR_RELATIVE **sd, 662 size_t *size); 663int ntfs_insert_security(struct ntfs_sb_info *sbi, 664 const struct SECURITY_DESCRIPTOR_RELATIVE *sd, 665 u32 size, __le32 *security_id, bool *inserted); 666int ntfs_reparse_init(struct ntfs_sb_info *sbi); 667int ntfs_objid_init(struct ntfs_sb_info *sbi); 668int ntfs_objid_remove(struct ntfs_sb_info *sbi, struct GUID *guid); 669int ntfs_insert_reparse(struct ntfs_sb_info *sbi, __le32 rtag, 670 const struct MFT_REF *ref); 671int ntfs_remove_reparse(struct ntfs_sb_info *sbi, __le32 rtag, 672 const struct MFT_REF *ref); 673void mark_as_free_ex(struct ntfs_sb_info *sbi, CLST lcn, CLST len, bool trim); 674int run_deallocate(struct ntfs_sb_info *sbi, const struct runs_tree *run, 675 bool trim); 676bool valid_windows_name(struct ntfs_sb_info *sbi, const struct le_str *name); 677int ntfs_set_label(struct ntfs_sb_info *sbi, u8 *label, int len); 678 679/* Globals from index.c */ 680int indx_used_bit(struct ntfs_index *indx, struct ntfs_inode *ni, size_t *bit); 681void fnd_clear(struct ntfs_fnd *fnd); 682static inline struct ntfs_fnd *fnd_get(void) 683{ 684 return kzalloc(sizeof(struct ntfs_fnd), GFP_NOFS); 685} 686static inline void fnd_put(struct ntfs_fnd *fnd) 687{ 688 if (fnd) { 689 fnd_clear(fnd); 690 kfree(fnd); 691 } 692} 693void indx_clear(struct ntfs_index *idx); 694int indx_init(struct ntfs_index *indx, struct ntfs_sb_info *sbi, 695 const struct ATTRIB *attr, enum index_mutex_classed type); 696struct INDEX_ROOT *indx_get_root(struct ntfs_index *indx, struct ntfs_inode *ni, 697 struct ATTRIB **attr, struct mft_inode **mi); 698int indx_read(struct ntfs_index *idx, struct ntfs_inode *ni, CLST vbn, 699 struct indx_node **node); 700int indx_find(struct ntfs_index *indx, struct ntfs_inode *dir, 701 const struct INDEX_ROOT *root, const void *Key, size_t KeyLen, 702 const void *param, int *diff, struct NTFS_DE **entry, 703 struct ntfs_fnd *fnd); 704int indx_find_sort(struct ntfs_index *indx, struct ntfs_inode *ni, 705 const struct INDEX_ROOT *root, struct NTFS_DE **entry, 706 struct ntfs_fnd *fnd); 707int indx_find_raw(struct ntfs_index *indx, struct ntfs_inode *ni, 708 const struct INDEX_ROOT *root, struct NTFS_DE **entry, 709 size_t *off, struct ntfs_fnd *fnd); 710int indx_insert_entry(struct ntfs_index *indx, struct ntfs_inode *ni, 711 const struct NTFS_DE *new_de, const void *param, 712 struct ntfs_fnd *fnd, bool undo); 713int indx_delete_entry(struct ntfs_index *indx, struct ntfs_inode *ni, 714 const void *key, u32 key_len, const void *param); 715int indx_update_dup(struct ntfs_inode *ni, struct ntfs_sb_info *sbi, 716 const struct ATTR_FILE_NAME *fname, 717 const struct NTFS_DUP_INFO *dup, int sync); 718 719/* Globals from inode.c */ 720struct inode *ntfs_iget5(struct super_block *sb, const struct MFT_REF *ref, 721 const struct cpu_str *name); 722int ntfs_set_size(struct inode *inode, u64 new_size); 723int ntfs_get_block(struct inode *inode, sector_t vbn, 724 struct buffer_head *bh_result, int create); 725int ntfs_write_begin(const struct kiocb *iocb, struct address_space *mapping, 726 loff_t pos, u32 len, struct folio **foliop, void **fsdata); 727int ntfs_write_end(const struct kiocb *iocb, struct address_space *mapping, 728 loff_t pos, u32 len, u32 copied, struct folio *folio, 729 void *fsdata); 730int ntfs3_write_inode(struct inode *inode, struct writeback_control *wbc); 731int ntfs_sync_inode(struct inode *inode); 732int inode_read_data(struct inode *inode, void *data, size_t bytes); 733int ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir, 734 struct dentry *dentry, const struct cpu_str *uni, 735 umode_t mode, dev_t dev, const char *symname, u32 size, 736 struct ntfs_fnd *fnd); 737int ntfs_link_inode(struct inode *inode, struct dentry *dentry); 738int ntfs_unlink_inode(struct inode *dir, const struct dentry *dentry); 739void ntfs_evict_inode(struct inode *inode); 740extern const struct inode_operations ntfs_link_inode_operations; 741extern const struct address_space_operations ntfs_aops; 742extern const struct address_space_operations ntfs_aops_cmpr; 743 744/* Globals from name_i.c */ 745int fill_name_de(struct ntfs_sb_info *sbi, void *buf, const struct qstr *name, 746 const struct cpu_str *uni); 747struct dentry *ntfs3_get_parent(struct dentry *child); 748 749extern const struct inode_operations ntfs_dir_inode_operations; 750extern const struct inode_operations ntfs_special_inode_operations; 751extern const struct dentry_operations ntfs_dentry_ops; 752 753/* Globals from record.c */ 754int mi_get(struct ntfs_sb_info *sbi, CLST rno, struct mft_inode **mi); 755void mi_put(struct mft_inode *mi); 756int mi_init(struct mft_inode *mi, struct ntfs_sb_info *sbi, CLST rno); 757int mi_read(struct mft_inode *mi, bool is_mft); 758struct ATTRIB *mi_enum_attr(struct ntfs_inode *ni, struct mft_inode *mi, 759 struct ATTRIB *attr); 760struct ATTRIB *mi_find_attr(struct ntfs_inode *ni, struct mft_inode *mi, 761 struct ATTRIB *attr, enum ATTR_TYPE type, 762 const __le16 *name, u8 name_len, const __le16 *id); 763static inline struct ATTRIB *rec_find_attr_le(struct ntfs_inode *ni, 764 struct mft_inode *rec, 765 struct ATTR_LIST_ENTRY *le) 766{ 767 return mi_find_attr(ni, rec, NULL, le->type, le_name(le), le->name_len, 768 &le->id); 769} 770int mi_write(struct mft_inode *mi, int wait); 771int mi_format_new(struct mft_inode *mi, struct ntfs_sb_info *sbi, CLST rno, 772 __le16 flags, bool is_mft); 773struct ATTRIB *mi_insert_attr(struct ntfs_inode *ni, struct mft_inode *mi, 774 enum ATTR_TYPE type, const __le16 *name, 775 u8 name_len, u32 asize, u16 name_off); 776 777bool mi_remove_attr(struct ntfs_inode *ni, struct mft_inode *mi, 778 struct ATTRIB *attr); 779bool mi_resize_attr(struct mft_inode *mi, struct ATTRIB *attr, int bytes); 780int mi_pack_runs(struct mft_inode *mi, struct ATTRIB *attr, 781 const struct runs_tree *run, CLST len); 782static inline bool mi_is_ref(const struct mft_inode *mi, 783 const struct MFT_REF *ref) 784{ 785 if (le32_to_cpu(ref->low) != mi->rno) 786 return false; 787 if (ref->seq != mi->mrec->seq) 788 return false; 789 790#ifdef CONFIG_NTFS3_64BIT_CLUSTER 791 return le16_to_cpu(ref->high) == (mi->rno >> 32); 792#else 793 return !ref->high; 794#endif 795} 796 797static inline void mi_get_ref(const struct mft_inode *mi, struct MFT_REF *ref) 798{ 799 ref->low = cpu_to_le32(mi->rno); 800#ifdef CONFIG_NTFS3_64BIT_CLUSTER 801 ref->high = cpu_to_le16(mi->rno >> 32); 802#else 803 ref->high = 0; 804#endif 805 ref->seq = mi->mrec->seq; 806} 807 808/* Globals from run.c */ 809bool run_lookup_entry(const struct runs_tree *run, CLST vcn, CLST *lcn, 810 CLST *len, size_t *index); 811void run_truncate(struct runs_tree *run, CLST vcn); 812void run_truncate_head(struct runs_tree *run, CLST vcn); 813void run_truncate_around(struct runs_tree *run, CLST vcn); 814bool run_add_entry(struct runs_tree *run, CLST vcn, CLST lcn, CLST len, 815 bool is_mft); 816bool run_collapse_range(struct runs_tree *run, CLST vcn, CLST len, CLST sub); 817bool run_insert_range(struct runs_tree *run, CLST vcn, CLST len); 818bool run_get_entry(const struct runs_tree *run, size_t index, CLST *vcn, 819 CLST *lcn, CLST *len); 820bool run_is_mapped_full(const struct runs_tree *run, CLST svcn, CLST evcn); 821 822int run_pack(const struct runs_tree *run, CLST svcn, CLST len, u8 *run_buf, 823 u32 run_buf_size, CLST *packed_vcns); 824int run_unpack(struct runs_tree *run, struct ntfs_sb_info *sbi, CLST ino, 825 CLST svcn, CLST evcn, CLST vcn, const u8 *run_buf, 826 int run_buf_size); 827 828#ifdef NTFS3_CHECK_FREE_CLST 829int run_unpack_ex(struct runs_tree *run, struct ntfs_sb_info *sbi, CLST ino, 830 CLST svcn, CLST evcn, CLST vcn, const u8 *run_buf, 831 int run_buf_size); 832#else 833#define run_unpack_ex run_unpack 834#endif 835int run_get_highest_vcn(CLST vcn, const u8 *run_buf, u64 *highest_vcn); 836int run_clone(const struct runs_tree *run, struct runs_tree *new_run); 837 838/* Globals from super.c */ 839void *ntfs_set_shared(void *ptr, u32 bytes); 840void *ntfs_put_shared(void *ptr); 841void ntfs_unmap_meta(struct super_block *sb, CLST lcn, CLST len); 842int ntfs_discard(struct ntfs_sb_info *sbi, CLST Lcn, CLST Len); 843 844/* Globals from bitmap.c*/ 845int __init ntfs3_init_bitmap(void); 846void ntfs3_exit_bitmap(void); 847void wnd_close(struct wnd_bitmap *wnd); 848static inline size_t wnd_zeroes(const struct wnd_bitmap *wnd) 849{ 850 return wnd->total_zeroes; 851} 852int wnd_init(struct wnd_bitmap *wnd, struct super_block *sb, size_t nbits); 853int wnd_set_free(struct wnd_bitmap *wnd, size_t bit, size_t bits); 854int wnd_set_used(struct wnd_bitmap *wnd, size_t bit, size_t bits); 855int wnd_set_used_safe(struct wnd_bitmap *wnd, size_t bit, size_t bits, 856 size_t *done); 857bool wnd_is_free(struct wnd_bitmap *wnd, size_t bit, size_t bits); 858bool wnd_is_used(struct wnd_bitmap *wnd, size_t bit, size_t bits); 859 860/* Possible values for 'flags' 'wnd_find'. */ 861#define BITMAP_FIND_MARK_AS_USED 0x01 862#define BITMAP_FIND_FULL 0x02 863size_t wnd_find(struct wnd_bitmap *wnd, size_t to_alloc, size_t hint, 864 size_t flags, size_t *allocated); 865int wnd_extend(struct wnd_bitmap *wnd, size_t new_bits); 866void wnd_zone_set(struct wnd_bitmap *wnd, size_t Lcn, size_t Len); 867int ntfs_trim_fs(struct ntfs_sb_info *sbi, struct fstrim_range *range); 868 869void ntfs_bitmap_set_le(void *map, unsigned int start, int len); 870void ntfs_bitmap_clear_le(void *map, unsigned int start, int len); 871unsigned int ntfs_bitmap_weight_le(const void *bitmap, int bits); 872 873/* Globals from upcase.c */ 874int ntfs_cmp_names(const __le16 *s1, size_t l1, const __le16 *s2, size_t l2, 875 const u16 *upcase, bool bothcase); 876int ntfs_cmp_names_cpu(const struct cpu_str *uni1, const struct le_str *uni2, 877 const u16 *upcase, bool bothcase); 878unsigned long ntfs_names_hash(const u16 *name, size_t len, const u16 *upcase, 879 unsigned long hash); 880 881/* globals from xattr.c */ 882#ifdef CONFIG_NTFS3_FS_POSIX_ACL 883struct posix_acl *ntfs_get_acl(struct mnt_idmap *idmap, struct dentry *dentry, 884 int type); 885int ntfs_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, 886 struct posix_acl *acl, int type); 887int ntfs_init_acl(struct mnt_idmap *idmap, struct inode *inode, 888 struct inode *dir); 889#else 890#define ntfs_get_acl NULL 891#define ntfs_set_acl NULL 892#endif 893 894int ntfs_acl_chmod(struct mnt_idmap *idmap, struct dentry *dentry); 895ssize_t ntfs_listxattr(struct dentry *dentry, char *buffer, size_t size); 896extern const struct xattr_handler *const ntfs_xattr_handlers[]; 897 898int ntfs_save_wsl_perm(struct inode *inode, __le32 *ea_size); 899void ntfs_get_wsl_perm(struct inode *inode); 900 901/* globals from lznt.c */ 902struct lznt *get_lznt_ctx(int level); 903size_t compress_lznt(const void *uncompressed, size_t uncompressed_size, 904 void *compressed, size_t compressed_size, 905 struct lznt *ctx); 906ssize_t decompress_lznt(const void *compressed, size_t compressed_size, 907 void *uncompressed, size_t uncompressed_size); 908 909static inline bool is_ntfs3(struct ntfs_sb_info *sbi) 910{ 911 return sbi->volume.major_ver >= 3; 912} 913 914/* (sb->s_flags & SB_ACTIVE) */ 915static inline bool is_mounted(struct ntfs_sb_info *sbi) 916{ 917 return !!sbi->sb->s_root; 918} 919 920static inline bool ntfs_is_meta_file(struct ntfs_sb_info *sbi, CLST rno) 921{ 922 return rno < MFT_REC_FREE || rno == sbi->objid_no || 923 rno == sbi->quota_no || rno == sbi->reparse_no || 924 rno == sbi->usn_jrnl_no; 925} 926 927static inline size_t wnd_zone_bit(const struct wnd_bitmap *wnd) 928{ 929 return wnd->zone_bit; 930} 931 932static inline size_t wnd_zone_len(const struct wnd_bitmap *wnd) 933{ 934 return wnd->zone_end - wnd->zone_bit; 935} 936 937static inline void run_init(struct runs_tree *run) 938{ 939 run->runs = NULL; 940 run->count = 0; 941 run->allocated = 0; 942} 943 944static inline struct runs_tree *run_alloc(void) 945{ 946 return kzalloc(sizeof(struct runs_tree), GFP_NOFS); 947} 948 949static inline void run_close(struct runs_tree *run) 950{ 951 kvfree(run->runs); 952 memset(run, 0, sizeof(*run)); 953} 954 955static inline void run_free(struct runs_tree *run) 956{ 957 if (run) { 958 kvfree(run->runs); 959 kfree(run); 960 } 961} 962 963static inline bool run_is_empty(struct runs_tree *run) 964{ 965 return !run->count; 966} 967 968/* NTFS uses quad aligned bitmaps. */ 969static inline size_t ntfs3_bitmap_size(size_t bits) 970{ 971 return BITS_TO_U64(bits) * sizeof(u64); 972} 973 974#define _100ns2seconds 10000000 975#define SecondsToStartOf1970 0x00000002B6109100 976 977#define NTFS_TIME_GRAN 100 978 979/* 980 * kernel2nt - Converts in-memory kernel timestamp into nt time. 981 */ 982static inline __le64 kernel2nt(const struct timespec64 *ts) 983{ 984 // 10^7 units of 100 nanoseconds one second 985 return cpu_to_le64(_100ns2seconds * 986 (ts->tv_sec + SecondsToStartOf1970) + 987 ts->tv_nsec / NTFS_TIME_GRAN); 988} 989 990/* 991 * nt2kernel - Converts on-disk nt time into kernel timestamp. 992 */ 993static inline void nt2kernel(const __le64 tm, struct timespec64 *ts) 994{ 995 s32 t32; 996 /* use signed 64 bit to support timestamps prior to epoch. xfstest 258. */ 997 s64 t = le64_to_cpu(tm) - _100ns2seconds * SecondsToStartOf1970; 998 999 ts->tv_sec = div_s64_rem(t, _100ns2seconds, &t32); 1000 ts->tv_nsec = t32 * 100; 1001} 1002 1003static inline struct ntfs_sb_info *ntfs_sb(struct super_block *sb) 1004{ 1005 return sb->s_fs_info; 1006} 1007 1008static inline int ntfs3_forced_shutdown(struct super_block *sb) 1009{ 1010 return test_bit(NTFS_FLAGS_SHUTDOWN_BIT, &ntfs_sb(sb)->flags); 1011} 1012 1013/* 1014 * ntfs_up_cluster - Align up on cluster boundary. 1015 */ 1016static inline u64 ntfs_up_cluster(const struct ntfs_sb_info *sbi, u64 size) 1017{ 1018 return (size + sbi->cluster_mask) & sbi->cluster_mask_inv; 1019} 1020 1021/* 1022 * ntfs_up_block - Align up on cluster boundary. 1023 */ 1024static inline u64 ntfs_up_block(const struct super_block *sb, u64 size) 1025{ 1026 return (size + sb->s_blocksize - 1) & ~(u64)(sb->s_blocksize - 1); 1027} 1028 1029static inline CLST bytes_to_cluster(const struct ntfs_sb_info *sbi, u64 size) 1030{ 1031 return (size + sbi->cluster_mask) >> sbi->cluster_bits; 1032} 1033 1034static inline u64 bytes_to_block(const struct super_block *sb, u64 size) 1035{ 1036 return (size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; 1037} 1038 1039static inline struct ntfs_inode *ntfs_i(struct inode *inode) 1040{ 1041 return container_of(inode, struct ntfs_inode, vfs_inode); 1042} 1043 1044static inline bool is_compressed(const struct ntfs_inode *ni) 1045{ 1046 return (ni->std_fa & FILE_ATTRIBUTE_COMPRESSED) || 1047 (ni->ni_flags & NI_FLAG_COMPRESSED_MASK); 1048} 1049 1050static inline bool is_bad_ni(const struct ntfs_inode *ni) 1051{ 1052 return ni->ni_bad; 1053} 1054 1055static inline int ni_ext_compress_bits(const struct ntfs_inode *ni) 1056{ 1057 return 0xb + (ni->ni_flags & NI_FLAG_COMPRESSED_MASK); 1058} 1059 1060/* Bits - 0xc, 0xd, 0xe, 0xf, 0x10 */ 1061static inline void ni_set_ext_compress_bits(struct ntfs_inode *ni, u8 bits) 1062{ 1063 ni->ni_flags |= (bits - 0xb) & NI_FLAG_COMPRESSED_MASK; 1064} 1065 1066static inline bool is_dedup(const struct ntfs_inode *ni) 1067{ 1068 return ni->ni_flags & NI_FLAG_DEDUPLICATED; 1069} 1070 1071static inline bool is_encrypted(const struct ntfs_inode *ni) 1072{ 1073 return ni->std_fa & FILE_ATTRIBUTE_ENCRYPTED; 1074} 1075 1076static inline bool is_sparsed(const struct ntfs_inode *ni) 1077{ 1078 return ni->std_fa & FILE_ATTRIBUTE_SPARSE_FILE; 1079} 1080 1081static inline int is_resident(struct ntfs_inode *ni) 1082{ 1083 return ni->ni_flags & NI_FLAG_RESIDENT; 1084} 1085 1086static inline void le16_sub_cpu(__le16 *var, u16 val) 1087{ 1088 *var = cpu_to_le16(le16_to_cpu(*var) - val); 1089} 1090 1091static inline void le32_sub_cpu(__le32 *var, u32 val) 1092{ 1093 *var = cpu_to_le32(le32_to_cpu(*var) - val); 1094} 1095 1096static inline void nb_put(struct ntfs_buffers *nb) 1097{ 1098 u32 i, nbufs = nb->nbufs; 1099 1100 if (!nbufs) 1101 return; 1102 1103 for (i = 0; i < nbufs; i++) 1104 put_bh(nb->bh[i]); 1105 nb->nbufs = 0; 1106} 1107 1108static inline void put_indx_node(struct indx_node *in) 1109{ 1110 if (!in) 1111 return; 1112 1113 kfree(in->index); 1114 nb_put(&in->nb); 1115 kfree(in); 1116} 1117 1118static inline void mi_clear(struct mft_inode *mi) 1119{ 1120 nb_put(&mi->nb); 1121 kfree(mi->mrec); 1122 mi->mrec = NULL; 1123} 1124 1125static inline void ni_lock(struct ntfs_inode *ni) 1126{ 1127 mutex_lock_nested(&ni->ni_lock, NTFS_INODE_MUTEX_NORMAL); 1128} 1129 1130static inline void ni_lock_dir(struct ntfs_inode *ni) 1131{ 1132 mutex_lock_nested(&ni->ni_lock, NTFS_INODE_MUTEX_PARENT); 1133} 1134 1135static inline void ni_lock_dir2(struct ntfs_inode *ni) 1136{ 1137 mutex_lock_nested(&ni->ni_lock, NTFS_INODE_MUTEX_PARENT2); 1138} 1139 1140static inline void ni_unlock(struct ntfs_inode *ni) 1141{ 1142 mutex_unlock(&ni->ni_lock); 1143} 1144 1145static inline int ni_trylock(struct ntfs_inode *ni) 1146{ 1147 return mutex_trylock(&ni->ni_lock); 1148} 1149 1150static inline int attr_load_runs_attr(struct ntfs_inode *ni, 1151 struct ATTRIB *attr, 1152 struct runs_tree *run, CLST vcn) 1153{ 1154 return attr_load_runs_vcn(ni, attr->type, attr_name(attr), 1155 attr->name_len, run, vcn); 1156} 1157 1158static inline void le64_sub_cpu(__le64 *var, u64 val) 1159{ 1160 *var = cpu_to_le64(le64_to_cpu(*var) - val); 1161} 1162 1163#if IS_ENABLED(CONFIG_NTFS_FS) 1164bool is_legacy_ntfs(struct super_block *sb); 1165#else 1166static inline bool is_legacy_ntfs(struct super_block *sb) 1167{ 1168 return false; 1169} 1170#endif 1171 1172#endif /* _LINUX_NTFS3_NTFS_FS_H */
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